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发表于 2013-4-7 14:20:33
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来自: 中国广东广州
hyc1754 发表于 2013-4-7 13:51 static/image/common/back.gif# I- w- c- s; }
谢谢你的热心帮助!
( b5 X- u/ |2 Q3 o( R9 W/ T标准里写的是1144而不是C-1144,我不确定他们是不是完全一样;1 X* y0 R5 C/ ` f$ ], O! E" m
关于机械性能,A370 ...
* B& ^6 u+ T4 T* Q前面C为 cold roll steel 这种钢除了切削性能很好外,力学性能要求不是很高# y& X- I, A; n- e x% T
Applications include cold drawn or finished bar, cold punched nuts, split rivets, machine screws, and wood screws. Post oil quenched hardness: 30 HRC surface, 27 HRC half-radius, 22 HRC center.
1 g, l8 U. B3 _1 R- UDensity 7.87 g/cc + Z" k9 l" Q7 C _" K& @$ q7 C
Hardness, Brinell 192 192
& h2 E2 k9 ?- z9 d2 j$ d$ uHardness, Knoop 214 214 Converted from Brinell hardness.
# D# p' Q1 q& u2 I7 t% EHardness, Rockwell B 91 91 Converted from Brinell hardness.
4 P1 t% J3 e) U% B7 X9 hHardness, Rockwell C 11 11 Converted from Brinell hardness. Value below normal HRC range, for comparison purposes only.
5 x5 W/ G& A ^& p+ F5 r, IHardness, Vickers 201 201 Converted from Brinell hardness.
6 D' }( c' j4 I$ mTensile Strength, Ultimate 650 MPa 94300 psi ) G+ [) K* t# H
Tensile Strength, Yield 425 MPa 61600 psi
4 j# q4 u5 k; g* J4 l( tElongation at Break 24 % 24 %
1 d& X* A! D* E' ?' p. q' a HReduction of Area 57.7 % 57.7 %
* `+ ~2 U Y3 P' L3 q- b. S3 E7 TModulus of Elasticity 200 GPa 29000 ksi Typical for steel& E5 t! v5 }$ ^9 H
Bulk Modulus 140 GPa 20300 ksi Typical for steel.
3 o0 q5 H* u5 \/ f- |" u; aPoisson's Ratio 0.29 0.29 Typical For Steel
+ a5 y- G. |; }/ e5 dIzod Impact 43 J 31.7 ft-lb normalized at 900?C, 65 J annealed at 815?C, 53 J as rolled: i/ I4 G) ~5 f4 d
Shear Modulus 80 GPa 11600 ksi Typical for steel. |
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